LOGANIACEAE. 727 



nelform, with 5 broad lobes imbricated in the bud. Stamens 5, inserted on the 

 tulx> of the corolla; anthers linear oblong. Ovary oblong, 2-celled; style slender 

 or tiliform. 4-cleft; ovules numerous on linear placentae. Capsule elliptic, flattened 

 contrary to the partition, septicidally dehiscent, the valves boat-shaped, 2-cleft at 

 the summit; seeds flattened, winged. [From the Italian Gelsomino, the Jessamine.] 

 Two known species, the following, the other of eastern Asia. 



I. Gelsemium sempervirens (L.) Ait. f. Yellow Jessamine. (I. F. f. 

 2847.) Stems sometimes 6 m. long. Leaves lanceolate, oblong-lanceolate or ovate- 

 lanceolate, entire, short petioled, persistent, evergreen, 3-8 cm. long; cymes 1-6- 

 flowered; pedicels short; bractlets several, dry, oblong or lanceolate; flowers dimor- 

 phous; corolla bright yellow, 2.5-4 cm. long; stigmas in one form short and anthers 

 exserted, in the other form longer and anthers included; capsule flat, channeled on 

 both sides, 8-14 mm. long, cuspidate. In woods and thickets, Va. to Fla., Tex. 

 and Guatemala. March-Oct. 



2. SPIGELIA L. 



Herbs, with opposite membranous entire pinnately veined leaves, small stipules, 

 or the leaf-bases connected by a stipular line, and red, yellow or purple flowers 

 in scorpioid cymes or unilateral spikes, or terminal and in the forks of the 

 branches. Calyx deeply 5-parted. Corolla 5-lobed, the tube finely 15-nerved. 

 Stamens 5, inserted on the corolla-tube; anthers 2-lobed at the base. Ovules numer- 

 ous, on peltate placentae; style filiform, jointed near the middle; stigma obtuse. 

 Capsule didymous, 2-celled, somewhat flattened contrary to the dissepiment, cir- 

 cumscissile, the 2 carpels becoming 2-valved. Seeds peltate, not winged. 

 [Named for Adrian von der Spigel, 1558-1625, physician.] About 35 species, 

 all American. Besides the following, 4 others occur in the Southern States. 



1. Spigelia Marylandica L. Indian or Carolina Pink. (I. F. f. 2848.) 

 Perennial; stem 4-angled, glabrous or nearly so, 3-6 dm. high. Leaves sessile, 

 ovate, or ovate-lanceolate, acute or acuminate, 5-10 cm. long, sparingly pubescent 

 on the veins; flowers in a terminal i-sided peduncled spike; corolla scarlet outside, 

 yellow within, 2-5 cm. long, its lobes lanceolate, about 6 mm. long; calyx-segments 

 subulate. In woods, N. J. (according to Gray) to Wis., Fla. and Tex. May-July. 



3. CYNOCTONUM J. G. Gmel. [MITREOLA R. Br.] 



Herbs, our species annual, with opposite entire leaves, and minute stipules, or 

 the leaf-bases connected by a stipular line. Flowers small, whitish, in one-sided 

 spikes forming cymes. Calyx 5-parted. Corolla urn-shaped, 5-lobed. Stamens 

 5, included; filaments short; anthers cordate. Ovules numerous, on peltate pla- 

 centae; style short, 2-divided below, united above by the common stigma, the divi- 

 sions becoming separate. Capsule 2-lobed at the summit; carpels divaricate, 

 dehiscent along the inner side. Seeds numerous, small, tuberculate. [Greek, dog- 

 killing.] About 5 species, of warm and tropical regions. 



1. Cynoctonum Mitreola (L.) Britton. Mitrewort. (I. F. f. 2849.) Stem 

 glabrous, erect, terete, 3-6 dm. high. Leaves lanceolate to ovate, petioled, 

 2.5-8 cm. long, 6-25 mm. wide, acute at both ends, glabrous; cymes terminal and 

 often also in the upper axils, slender-peduncled; flowers about 2 mm. broad, 

 numerous, sessile or nearly so; capsule deeply 2-lobed, compressed, the lobes at 

 length widely diverging, acute. In wet or moist soil, Va. to Fla., Tex, and Mex, 

 Also in the W. Indies. June-Sept. [Mitreola petiolata T. & G.] 



4. POLYPREMUM L. 



A glabrous diffusely branched annual herb, with opposite linear-subulate leaves, 

 their bases connected by a stipular membrane, and small white flowers in terminal 

 bracted cymes. Calyx deeply 4-parted (rarely 5-parted), the segments subulate. 

 Corolla campanulate, bearded in the throat, shorter than the calyx, 4-lobed (rarely 

 5-lobed;. Stamens 4 (rarely 5), inserted on the corolla, included; filaments short; 

 anthers ovoid- globose. Ovules numerous, on oblong placentae; style short; stigma 

 capitate or obscurely 2-lobed. Capsule slightly compressed, didymous, loculici- 

 dally 2-valved. the carpel- at length septicidal. Seeds minute, smooth. [Greek, 

 many-stemmed.] A monotypic genu;,. 



